I've been using Moment's system of interchangeable lenses for the iPhone since they first became available. If you take your smartphone photography seriously, they're a smart investment that can upgrade your handset with capabilities once only available to DSLR and mirrorless cameras.

When version two of their lens system was announced, I jumped at the opportunity to review them. I tested them over the course of a month and a half on assignment in China, Japan and western Canada. The glass is just as great as Moment's version one lenses. The new mounting system, however, is eons ahead of their old one. I love it.